Table 1.

Identification of physicians/death certificates.^a

Sample	n or %
Initial sample of death certificates (1)	14,999
Death certificates with directly identified physician (2)	11,412
Death certificates with unidentified physician, sent to mayor’s offices (3)	3587
Physician identified by the mayor’s offices (4)	2828
Impossible to identify the physician (5.1)	759
Certificate disregarded due to the cut-off of 4 certificates per physician, except in cases of heads of department (5.2)	160
Final sample, death certificates (6)=(2)+(4)−(5.2)	14,080
Number of physicians	11,828
Proportion of unused death certificates (10)=[(5.1)+(5.2)]/(1)	6.12
Proportion of used death certificates (11)=(6)/(1)	93.87

^aThe figures in parentheses are useful to compute % in this table.